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mtd: add get/set of_node/flash_node helpers

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We are going to begin using the mtd->dev.of_node field for MTD device
nodes, so let's add helpers for it. Also, we'll be making some
conversions on spi_nor (and nand_chip eventually) too, so get that ready
with their own helpers.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This commit is contained in:
Brian Norris 2018-08-16 17:30:03 +02:00 committed by Jagan Teki
parent ca040d8512
commit 9bfc3fde9c
1 changed files with 28 additions and 0 deletions
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28
include/linux/mtd/mtd.h
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@ -21,6 +21,9 @@
#include <mtd/mtd-abi.h>
#include <linux/errno.h>
#include <div64.h>
#if IS_ENABLED(CONFIG_DM)
#include <dm/device.h>
#endif
#define MAX_MTD_DEVICES 32
#endif
@ -306,6 +309,31 @@ struct mtd_info {
int usecount;
};
#if IS_ENABLED(CONFIG_DM)
static inline void mtd_set_of_node(struct mtd_info *mtd,
const struct device_node *np)
{
mtd->dev->node.np = np;
}
static inline const struct device_node *mtd_get_of_node(struct mtd_info *mtd)
{
return mtd->dev->node.np;
}
#else
struct device_node;
static inline void mtd_set_of_node(struct mtd_info *mtd,
const struct device_node *np)
{
}
static inline const struct device_node *mtd_get_of_node(struct mtd_info *mtd)
{
return NULL;
}
#endif
int mtd_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobecc);
int mtd_ooblayout_find_eccregion(struct mtd_info *mtd, int eccbyte,